First yes this is a very scary scenario. I question what storing large amounts of cash money will do for you if the system collapses I would think money would be worthless. I think in this situation that precious metals, food, clean water, some form of security and most importantly whatever skills you posses that would be helpful in this situation ( ie someone with good mechanical skills teaming up with someone who is a good farmer or someone with some solid security skills) would be the most important thing. I live in a small town and am hoping that aside from a few altercations that are bound to happen that the town can kind of band together and use our collective skill setts to get through this. My big hope is that even if we loose electric long term we can survive using steam power to do work since it's harder to create gas or diesel than it would be to revert back to steampower.